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US6910658: Underwater detection system


Filing Information

Inventor(s) David Hart · Robert L. Cooke ·
Assignee(s) BAE Systems PLC ·
Attorney/Agent(s) Nixon & Vanderhye P.C. ·
Primary Examiner Michael J. Carone ·
Application Number US7456817
Filing date 12/08/1989
Issue date 06/28/2005
Predicted expiration date 12/08/2014
Patent term adjustment 1826
U.S. Classifications 244/312  · 114/213  ·
International Classifications --
Kind CodeB1
International Classifications 244 312 · 114 212 · 114 213 ·
Foreign Priority GB8828680 - 12/08/1988 ·
9 Claims, 2 Drawings


An anti-torpedo torpedo having laser homing head, the torpedo being launched from a parent vessel or platform which itself houses the expensive to replace, the bulky, or the high power consuming parts of the laser, said parts being optically connected to an optical projector in the homing head in the torpedo itself and to any parts of the laser not housed in the parent vessel.

Independent Claims | See all claims (9)

  1. 1. An underwater detection system having an underwater guided vehicle, a parent vessel which can be a surface vessel or an underwater vessel or a platform, and detection means for detecting underwater objects, the detection means including a laser light generating means, means to direct the light so generated towards an underwater object, and detector means to receive a reflection from said underwater object, at least some parts of the laser light generating means being carried by the parent vessel and at least the directing means and the detector means being carried by the underwater vehicle, and optical fiber cable means for operatively connecting those parts of the laser light generating means carried by the parent vessel or platform to the directing means and to any parts of the laser light generating means carried by the underwater vehicle.
  2. 2. An underwater detection system comprising: an underwater guided vehicle having an optical projector for directing received laser light towards an underwater target, and an optical detector for receiving laser light reflected from the target; a laser light generator, remote from said underwater guided vehicle; and a light guide for transmitting laser light from said generator to said guided vehicle and coupling said laser light to said guided vehicle as said received laser light.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US3161168* LORAL ELECTRONICS CORP Rebikoff Dec 1964
US3506967* US NAVY Foley Apr 1970
US3613619* US NAVY de Nobel Oct 1971
US3643616* US NAVY Jones Feb 1972
US4611771* United States of America as represented by the Secretary of the Army Gibbons et al. Sep 1986
US4770370* The Boeing Company Pinson Sep 1988
US4860968* The Boeing Company Pinson Aug 1989
* cited by examiner

Referenced By

Document NumberAssigneeInventorsIssue/Pub Date
US7036767 Rafael-Armament Development Authority Ltd. Ehud Chishinski May 2006